fuel circulating pump

例句：

1. 1. The fuel circulating pump is responsible for distributing the gas throughout the engine.
   燃料循环泵负责在整个发动机中分配气体。
2. 2. The fuel circulating pump was designed to improve efficiency and reduce emissions.
   燃料循环泵被设计来提高效率和减少排放。
3. 3. The fuel circulating pump plays a crucial role in maintaining the proper temperature of the engine's coolant system.
   燃料循环泵在保持发动机冷却液系统适当温度方面起着至关重要的作用。